Which vestibular end organ is tested by cVEMP?

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Multiple Choice

Which vestibular end organ is tested by cVEMP?

Explanation:
cVEMP targets the saccule. A high‑intensity sound or vibration stimulates hair cells in the saccule, and the resulting signal travels via the inferior vestibular nerve to the brainstem and down the vestibulospinal tract to motor neurons that control the sternocleidomastoid muscle. The measurable myogenic potential in the SCM reflects this vestibulocollic reflex pathway, thus indicating saccular function. The utricle is more involved in different vestibular pathways (often assessed by other tests like oVEMP), semicircular canals are linked to angular head movements and are evaluated with caloric tests or rotary chair testing, and the cochlea is the auditory organ, not the vestibular end organ tested by cVEMP.

cVEMP targets the saccule. A high‑intensity sound or vibration stimulates hair cells in the saccule, and the resulting signal travels via the inferior vestibular nerve to the brainstem and down the vestibulospinal tract to motor neurons that control the sternocleidomastoid muscle. The measurable myogenic potential in the SCM reflects this vestibulocollic reflex pathway, thus indicating saccular function.

The utricle is more involved in different vestibular pathways (often assessed by other tests like oVEMP), semicircular canals are linked to angular head movements and are evaluated with caloric tests or rotary chair testing, and the cochlea is the auditory organ, not the vestibular end organ tested by cVEMP.

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